The 9921MT is compatible with Allstar, Allister, Pulsar, or Heddolf code switch type radio receivers. This unit can control one Allstar, Allister, Pulsar, or Heddolf 9 three position binar (ON/OFF) type code switch devices on the 318MHz frequency.

NOTE: Will not work for receivers that have the Trinary (+/0/-) type code switches, please see the 9931MT. Nor will it work on remotes that are on 288Mhz frequency see 9931MT-288RF for those units.

The Allstar 9921MT remote is directly compatible with the following models on 318MHz to control one device.